EXCLUSIVE: Harry Morton goes shopping at Cartier for an engagement ring for girlfriend Lindsay Lohan

Linsday Lohan's billion-dollar beau has splashed out a chunk of his huge inheritance on a diamond engagement ring. Harry Morton, whose father Peter used to run the Hard Rock restaurant chain, was spotted on a secret trip to exclusive Rodeo Drive store Cartier, where he picked out the perfect jewel for his flame-haired lover. The 25-year-old Pink Taco boss has dated Lohan for little more than a month, but is now ready to get down on one knee and ask for her hand in marriage. "Harry has spent a lot of time planning to propose to her," an insider revealed. "He has definitely got an engagement ring for her and they are both ready to take their relationship to the next level." Morton walked into French jeweller Cartier at around11am on Wednesday, before visiting a few other stores - including designer boutique Hermes. But he later returned to the exclusive jewellery store to buy the ring. The pair were first spotted kissing and cuddling on the beach in Malibu, California, in July this year - days after Lohan had celebrated her 20th birthday.

Pictures by Chris Whittle/Splash News Ref: SPT 300806 Y EXCLUSIVE

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